Grundinformationen
- CAS
1733-12-6- Standard-SMILES
Cc1cc(C2(c3ccc(O)c(C)c3)OS(=O)(=O)c3ccccc32)ccc1O- InChIKey
OBRMNDMBJQTZHV-UHFFFAOYSA-N- Summenformel
- C21H18O5S
- Durchschnittliche Molmasse
- 382,4 g/mol
- Monoisotopische Masse
- 382,08749468
Überblick
Cresol red is a member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxy-5-methylphenyl groups. It has a role as a dye, an acid-base indicator and a two-colour indicator. It is a polyphenol, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.
Namen und Bezeichner
- Bevorzugter Name
- Cresol Red
- IUPAC
- 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-2-methylphenol
- Lokaler Name
- Kresolrot
- Englischer Name
- Cresol Red
- Summenformel
- C21H18O5S
- Molmasse
- 382.43
Namen und Synonyme
Cresol red1733-12-6o-Cresolsulfonphthaleino-Cresol RedCresolsulfophthaleino-CresolsulfonephthaleinPhenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methyl-3',3''-DimethylphenolsulfonephthaleinNSC 7224NSC-7224839K2R4B8KDTXSID8061929
Weitere Namen anzeigen
CRBROMCRESOL PURPLECRGFcresolreBETZ 0419Cvesol red
CHEBI:86218Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-methyl-RefChem:579417DTXCID5035531217-064-23,3-bis(4-hydroxy-3-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxideCresolRedCresol red indicator
Datenbank-Bezeichner
- CAS
1733-12-6- PubChem CID
- 73013
- DTXSID
DTXSID8061929- ChEBI
CHEBI:86218- UNII
- 839K2R4B8K
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 3,7
- Polarare Oberfläche (TPSA)
- 92,2 Ų
- H-Brücken-Donoren
- 2
- H-Brücken-Akzeptoren
- 5
- Frei drehbare Bindungen
- 2
- Schwere Atome
- 27
- Formalladung
- 0
- Komplexität
- 615
Experimentelle und physikochemische Eigenschaften
Chemical ClassesDyes -> Indicator Dyes
Physical DescriptionReddish-brown solid; [Merck Index] Reddish-brown or green odorless solid; [CHEMINFO] Crystalline solid; [MSDSonline]
Physikochemische Eigenschaften
- Schmelzpunkt
- 290 °C · 290 °C
- Siedepunkt
- 479.59 °C · 479.59°C (rough estimate)
- Dichte
- 0.998 g/cm3 · 0.998 g/cm3
- Brechungsindex
- 1.53 · 1.5300 (estimate)
- storage temp.
- 5 °C · Store at +5°C to +30°C.
- Löslichkeit
- Solubility Sparingly soluble in water; soluble in ethanol
- Aggregatzustand
- Powder
- pka
- 1 · 1.0(at 25℃)
- Farbe
- Dark green or brown-red
- PH
- 7.2 · 7.2~8.8
- Wasserlöslichkeit
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 6.5% (3 of 46) of reports.
Warning
H315 (91.3%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 46 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Chemical: Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2-methyl-, S,S-dioxide
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methyl-: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryMay cause irritation; [MSDSonline]
Hazard Classes and CategoriesSkin Irrit. 2 (91.3%)
Sicherheitsdaten
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN1170 - class 3 - PG 3 - Ethanol, solution
- hs_code
- 29349990
- risk_code
- 36/37/38-20/21/22-11
- Toxizität
- A potent lacrimator which is chemically stable and retains its irritancy in water and so can be used in liquid jets in personnel control. In addition to lacrimation, it causes eye pain, blepharospasm, eyelid swelling, irritation of the conjunctiva, a rise in intraocular pressure, and erythema of the skin. Because it can be used in water, its use is less affected by changes in climatic conditions. It is a more potent lacrimator than CS but it is less potent in lethality than CS.
Chemie und Industrie
Verwendung und Herstellung
UsesUsed as acid-base indicator; [Merck Index] Color changes to red-yellow (pH 0.5-2.5) and orange-purple (pH 6.5-8.5); [Ullmann]
General Manufacturing InformationPhenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methyl-: ACTIVE
Anwendungen
VerwendenCresol red is commonly used with lead acetate for the detection of urease after PAGE. It is also used as an indicator with the following transition intervals: pH 1.8 (orange) to pH 2.0 (yellow); pH 7.0 (yellow) to pH 8.8 (violet). Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase.
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
Anbieter100 Anbieter
国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
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